Joining spouts to metallic kettles



(No Model 2 Sheets-Sheet 1.- G. D. MILNE A. R. PRITGHARD.

JOINING SPOUTS T0 METALLIC KETTLES.

' Patented July 25, 1893.

W amass c 5 QC. g.

(No Model.) 2 Sheets-Sheet 2.

Unitarian STATES CHARLES D. MILNE AND ALBERT R. PRITOHARD, OF ROCHESTER,NEW YORK.

JOINING SPOUTS TO METALLIC KETTLES.

SPECIFICATION forming part of Letters Patent No. 502,046, dated July 25,1893.

Application filed April 5, 1 8 93.

To all whom it may concern.-

Be it known that we, CHARLES D. MILNE and ALBERT R. PRITCHARD, citizensof the United States, and residents of the city of Rochester, county ofMonroe, and State of New York, have invented certain new and usefulImprovements in Joining Spouts to Metallic Kettles and Similar Vessels,of which the following is aspecification, reference being had to theaccompanying drawings, in which- Figure l is afront elevation of a teakettle perforated for theintroduction of a spout, according to ourmethod. Fig. 2 is a cross section on the line zitof Fig. 1, after theedge of the perforation in the kettle has been flanged and headed. Fig.3 is a perspective View of a spout for a kettle provided with a flatflange. Fig. 4 is a top plan view of a spout, after the flat flange ofFig. 3 has been curved. Fig. 5 is a top plan View of a spout, after theflange has been curved, as shown in Fig. 4, and it has been set in placethrough the perforation in the kettle. Fig. 6 is a top plan View of thespout, after the flange of the kettle and the flange of the spout havebeen rolled together. Fig. 7 is an enlarged view in section on the linexx, showing the edges of the kettle and spout flanges rolled together.Fig. 8 is a section on the line y-y of Fig. 1, but after the spout hasbeen fastened to the kettle. Fig. 9 is a side elevation of a kettle,provided with a spout fastened thereto according to our method. Fig. 10is a bottom plan View of the upper die for fastening the kettle andspout together. Fig. 11 is a front elevation of the same die. Fig. 12 isa longitudinal section of the same die on the line 2-2 of Fig. 10, andshowing in dotted lines a spout in position in the die. Fig. 13 is a topplan view of the lower die for fastening the spout and kettle together.Fig. 14 is a side elevation of the same die, showing in dotted lines aspout in position on the die. Fig. 15 is a front elevation of same die,showing in dotted lines the positions of a spout on the die, and of theadjacent portions of the side of a kettle thereon.

In Figs. 2, 5, 6 and 7 the portions of the kettle body adjacent to theopening a are shown flat'instead of curved.

In the manufacture of kettles it has heretofore been the practice eitherto solder the Serial No. 469,223. (No model.)

spout to the kettle body or to seam the whole base edge of the spout tothe edge of an aperture in the body by hand. Where the spout is solderedto the kettle, an over heating will, of course, melt the solder and willrelease the spout from the kettle body, and even where rivets are usedto assist in holding the spout to the kettle'body the melting away ofthe solder will make openings which will leak.

Where the spout is seamed to the kettle by I A hand, the operation isslow and expensive and a perfect joint cannot be obtained as when a diepress is employed to compress the joined edges together.

The objectof our invention is to join a spout to a tea-kettle whereby awater tight union is made between the two, and which shall not dependupon the use of solder,but which shall be accomplished as far aspossible by mechanical processes accomplished by machinperforation a,from the corner at around the lower end a and thence to the corner a areformed between dies, which produce a flange (1 extending inwardly and abead a projecting outwardly adjacent to the flanged edge as shown inFig. 2. A spout B having a contour at its base fitting the aperture a isprovided with a flange 1) around the base, from the point 1) around thelower portion b to the corner b Between the points b and b there is noflange; nor is there any flange or bead at the upper edge of theaperture a between the points a and 0. The flange b is next pressed bysuitable dies so that said flange is curled outwardly substantially inU-forrn as shown in Fig. 4. The spout B extends upwardly at a rathersharp angle with the plane of the base as shown in Fig. 9. The die 0 isthe lower or stationary die in the press. It has a suitable horn c whichis shaped to support the lower part of the spout. Around the base of thehorn is a groove c into which fits the curved flange Z) of the spout.The upper die D is hollow in order to bridge over the spout as it liesupon the die 0 and is provided with an edge d having a groove (1' whichis opposite and is the counterpart of the groove 0' in the die 0. Thegroove d is so shaped as to fit upon the head a of the kettle body.After the spout and the kettle body have been flanged and the flangeshave been curved as described, the spout is placed upon the dieG withthe curved flange b resting in the groove 0. The die 0 is supported uponthe end of an arm for the purpose hereinafterdescribed. After the spouthas been placed in position upon the die 0, the kettle body is placedupon the die by fitting the aperture at around the spout so that theflange a projecting downwardly rests in the concavity of the flange b.

The parts, spout and kettle body, are so formed that when they are inthe position just described upon the die, the spout tightly fits theaperture a in the kettle body. The die D is now brought down by thepress (which is of any usual form) and the groove cl presses upon thehead a pressing the flange a downward into the concavity of the flangeZ), and by reason of the die 0 being stationary also compressing theedge of the flange b upward into the concavity of the bead As thecompression continues the curved inner side of each flange forces theedge of the other flange to follow the contour of such curvature, andcauses the two flanges to roll, each upon and within the other, andasthe compression reaches its maximum the two flanges are tightlypressed together and produce a water-tight seam on all sides of the baseof the spout, except at the top edge. This edge is placed so near thetop of the kettle that leakage therethrough is of little, consequence,and the upper side of the base of the spout is tightly pressed againstthe upper edge of the aperture (1, and a very small quantity of solderserves to make the joint at this edge water-tight.

In our invention the seaming of a spout to a kettle body is by reason ofthe shape of the spout at its base and of the dies, carried to themaximum extent around the line of union between the two parts; and atall points where parts are seamed together the lower die sufficientlysupports the upper die and the upper die moves in a direct line.

Vhile other contours than those shown may be given to the base of thespout and to the aperture, we prefer to make use of a spout and anaperture triangular in contour with rounded corners. In any event thespout and kettle body are seamed together at their meeting edges, exceptat the upper meeting edge.

\Vhat we claim is- 1. The method of fastening sheet metal spouts tosheet metal vessels consisting in first forming an aperture in the sideof the Vessel substantially triangular in form with rounded corners andin forming around one corner of said aperture and around the contiguousedges thereof an inwardly projecting flange and an outwardly projectingbead and in forming an outwardly projecting flange around the base of aspout corresponding in contour to the flanged and beaded edges of saidaperture, then fitting the flange of the spout over the flange of theaperture with the edge of each flange resting within the sides of theother flange, then compressing the two flanges together inwardly andoutwardly at once between dies having grooves fitting upon the innerside of the curve of the spout flange and upon the outer side of saidbead, whereby the edges of the flanges are rolled or curled together,each within the other, and then fastening together the unflanged portionof the base of the spout and the unflanged edge of the aperture in thevessel, substantially as described.

2. The method of fastening sheet metal spouts to sheet metal Vessels,consisting in first forming an aperture in the side of the vessel andformingpartly around the edges of said aperture an inwardly projectingflange and an adjacent outwardly projecting bead and in forming acoextensive outwardly projecting flange around the base of a spoutfitting said aperture, then fitting said flanges together with the edgesof each flange resting within the sides of the other flange, thencompressing the two flanges together inwardly and outwardly at oncebetween dies having grooves fitting upon the inner side of the spoutflange and upon the outer side of said bead, whereby the edges of theflanges are rolled together each within the other, and then solderingtogether the unfianged edges of said aperture and of the base of saidspout, substantially as described.

8. The method of fastening sheet metal spouts to sheet metal vesselsconsisting in first forming an aperture in the side of a vessel andforming partly around the edge of said aperture a continuous inwardlyprojecting flange and an adjacent eo-extensive outwardly projecting beadand in forming a coextensive outwardly projecting flange around the baseof aspout fitting said aperture, then fitting said flanges together withthe edge of each flange resting in and upon the curved base or bead ofthe other flange, then coinpressing the two flanges together inwardlyand outwardly at once between dies having grooves fitting upon the innerside of the curve of the spout flange and upon the outer side of saidhead, whereby the edges of the flanges are rolled or curled, each withinthe other, and then fastening together the unflanged edges of saidaperture and of the base of said spout, substantially as described.

CHARLES D. MILNE. ALBERT R. PRITCIIARD. \Vitnesses:

E. B. FENNER, H. L. OSGOOD.

